1252999 has 4 divisors (see below), whose sum is σ = 1366920. Its totient is φ = 1139080.

The previous prime is 1252997. The next prime is 1253011. The reversal of 1252999 is 9992521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1252999 - 2¹ = 1252997 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56944 + ... + 56965.

It is an arithmetic number, because the mean of its divisors is an integer number (341730).

2^1252999 is an apocalyptic number.

1252999 is a deficient number, since it is larger than the sum of its proper divisors (113921).

1252999 is a wasteful number, since it uses less digits than its factorization.

1252999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113920.

The product of its digits is 14580, while the sum is 37.

The square root of 1252999 is about 1119.3743788385. The cubic root of 1252999 is about 107.8078143591.

The spelling of 1252999 in words is "one million, two hundred fifty-two thousand, nine hundred ninety-nine".